3 phase

I think I hate my son. I've been getting stuff together to make a *real nice* phase converter. One that would do a couple 100 amp machines at the same time.

He just called and told me he has REAL three phase on his property. Less than a hundred feet from the machine shed. I'd give my left nut for real three phase. I got a price of 20K several years back and should have done it.

He may still get sticker shock on the hook up price and minimum monthy charge but its there. he's going to ask this week. His one question 440 or

220? I'm thinking he's better with 220 and put the house on it to get some useage. Good idea?

Karl

Reply to
Karl Townsend
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I hate him too, but I think that 220 is better, as it is less troublesome and some machines run on 220 only. 440v only machiens are more rare, IMHO.

For a real nice phase converter, I can sell you a 25 HP 1750 RPM motor, for $150.

i
Reply to
Ignoramus5816

Just what I'm looking for and a fair price. But shipping would kill it.

Karl

Reply to
Karl Townsend

If you are going to be in my area soon that could work.

But I will not keep it for too long.

i
Reply to
Ignoramus5816

He is better with 440..but it can be damned inconvienent, so unless one has a few good sized 440/220 3ph transformers kicking around...stay with 220. Need a couple? Ive go several... They start off at 300 lbs and go up from there....

Gunner

Reply to
Gunner Asch

How many of what size do I need for my time machine. I'll go back and give free vasectomies to liberals' dads and grandpas...if anybody could figure out who they are. What works best for vasectomies, hollow points or wad cutters?

Reply to
Buerste

Do you have any liberal siblings or cousins?

i
Reply to
Ignoramus5816

It's the sort of thing that you'd normally do a cost analysis on. Figure how many amps where and how much copper you'd save with 480 verses the cost of a transformer and it's magnetizing and copper losses.

If I were to just pull a number out of my ass, I'd say less than 200 amperes for the shop, stick to 240. Maybe Pete C. could chime in with a professional opinion.

Reply to
Jim Stewart

Niether. 1 1/8th ounce of shot at 1200 fps, is the prefered method.

Gunner

Reply to
Gunner Asch

No. I certainly dont. My family is smart. They are doctors, scientists and engineers.

Not a social worker in the pack.

Gunner

Reply to
Gunner Asch

Having 480 saves on wire size for the same power capacity but everything else gets quite expensive. Breakers, panel boxes , safety disconnects will scare you with the prices. 200 amps is the limit on a direct reading meter, after that current transformers are used. You will have a hard time using the full 200 amps in a small shop.

The peak demand in my shop runs about 40 Kw and that is with 5 cnc machines and a couple of big vertical boring mills. If you happen to get a good buy on a 480 machine that can't be converted, get a transformer. I have 3200 amps coming into my building, maybe some day I will be able to put it to good use maybe with a nice induction furnace. :)

John

N
Reply to
John

On Wed, 26 May 2010 19:58:41 -0400, "Buerste" wrote the following:

Wouldn't their complete removal from society be better than just a vas, Tawm? Otherwise, they'll adopt and indoctrinate. Catch the more Rabid Right while you're at it, too, eh?

--------------------------------------------------- I drive way too fast to worry about my cholesterol. ---------------------------------------------------

Reply to
Larry Jaques

Karl, If you are looking for a large 3 phase motor, I may be able to help. We remove 3-4 a year and toss them in the scrap! Plus Fargo is not that far to haul it back your way. Let me know, I think we are tearing out a large air handler any day that may have a suitable motor. Greg

Reply to
Greg O

My brother, 2 years older, is an Uber-liberal lawyer. I will only vasectomize "certain" liberals...politicians!

Reply to
Buerste

EVERYBODY that's not like you and me...and I'm not too sure about you!

Reply to
Buerste

Damned good idea if it can be had reasonably. I paid just over $22,000 to get it to our shop. I thought it was less, but found the invoice recently, to refresh my memory. I think it was worth it, but I'm spoiled. I've had 3 phase since 1967.

Iggy suggested that 220 volt machines tend to be more common than 440 (or

480). True for light duty equipment, but industry is well known for using 480 delta three phase. Select the service that best suits your equipment. I have one grinder that requires 480 volts, so I have one transformer. The rest run on three phase delta, 240 volts.

Harold

Reply to
Harold & Susan Vordos

Hey Greg,

Hope your friend is enjoying that Bridgeport.

Yes, I'm looking for thee motors. My plan is to start a 10 or so, and then bring in two larger ones one at a time for a total of fifty or sixty horse. "The Kid" is buying, so I'm sure he'd rather road trip for a deal. he goes to Crookston twice a year to see a friend if you don't mind holding a while.

thanks

Karl

Reply to
Karl Townsend

On Thu, 27 May 2010 02:27:43 -0400, "Buerste" wrote the following:

I used to think that I was the black sheep of the family until I realized that my cousin had gone through law school and become a Speaking Weasel. Family is no excuse. Vas on, dude! do you do tubals, too? My niece is also infected. She lives in the SF Bay Area and went to Itsa Cruise college.

--------------------------------------------------- I drive way too fast to worry about my cholesterol. ---------------------------------------------------

Reply to
Larry Jaques

On Thu, 27 May 2010 07:09:52 GMT, "Harold & Susan Vordos" wrote the following:

One nice thing about 3-phase (and 480) is that you can find all sorts of large toys and buy them for a song. Few locations can use them any more.

--------------------------------------------------- I drive way too fast to worry about my cholesterol. ---------------------------------------------------

Reply to
Larry Jaques

The more mundane reason why so many old machines sell for a song, is that they are obsolete or unreliable or are no longer supported, which does not help when you are trying to make money and have a fast turnaround on orders.

i
Reply to
Ignoramus12281

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